AZ31镁合金薄板热油恒温成形数值模拟与 实验研究.

The formability of AZ31 magnesium alloy was studied by finite element simulation and forming experiment. It’s based on Dynaform simulation software and hot oil thermostatic forming equipment to explore a hot forming process which is suitable for magnesium alloy, and to analyze the microstructure of the formed parts. The results showed that by adjusting the process parameters such as the plate size, die R angle, blank holder force and friction coefficient, the bottom thinning rate of the formed part and the fracture tendency can be reduced, and the forming performance of magnesium alloy can be improved； and when the forming temperature is 200 ℃, the die R angle is 16 mm, the plate diameter is 80 mm, the appropriate blank holder force and friction coefficient are adjusted, it can obtain the best process window. Near the bottom of the formed parts, the grain size and the second phase size gradually decrease and tend to be uniform. [ABSTRACT FROM AUTHOR]